Estimating

Aquil earns £288 per week. He needs to work out his annual salary. Use estimation to work out his annual salary.

Peter sold 89 pairs of scissors for £24 each. They cost him £11. Use estimation to work out how much profit he made.

A coin weighs 12g. Sam has a bag of coins that weighs 983g. Use estimation to work out how many coins he has.

Trudi earns £1628 per month. She needs to work out her annual salary. Use estimation to work out her annual salary.

This is where you can use a higher and a lower estimate and find the mid-point between the 2!

A wall has an area of 123m2 A tin of paint will cover 14m2 of wall. Hattie needs to work out how many tins of paint she will need to buy. Use estimation to work out how many tins she needs.

Type out the sums you did you work it out!

A farmer bought 3179kg of seeds at a cost of £17 per kilogram. Use estimation to work out the total cost of the seeds.

A machine operator makes 74 bolts every hour. She works 39 hours per week for 48 weeks of the year. She will get a bonus if she makes more than 130,000 bolts in a year.

Use estimation to work out if she will receive a bonus this year.

You must show the sums you did to work it out.

Aaron is building a brick wall. The wall will need 1025 bricks. The weight of each brick is 2.89kg. Aaron will pay a delivery charge if the total of bricks is over 2500kg.

Use estimation to work out if you think Aaron will need to pay the delivery charge. You must show your working out.